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采用粉末冶金与铸造烧结技术相结合,以铁粉、镍粉、高碳锰铁粉、ZTA颗粒等为原料,制备了ZTA颗粒增强高锰钢表层复合材料。采用金相显微镜和扫描电镜(SEM)对复合材料的微观组织进行分析。结果表明,表面复合层基体组织明显优于高锰钢,热处理工艺使表面复合层与陶瓷颗粒结合处发生了界面反应,元素分布发生了改变,表面复合层基体与高锰钢结合良好。
Adopting the combination of powder metallurgy and casting sintering technology, ZTA particle reinforced high manganese steel surface composite was prepared by using iron powder, nickel powder, high carbon ferromanganese powder and ZTA particles as raw materials. The microstructure of the composites was analyzed by optical microscope and scanning electron microscope (SEM). The results show that the microstructure of the surface composite layer is obviously better than that of high manganese steel. The heat treatment process causes the interface reaction between the surface composite layer and the ceramic particles, and changes the elemental distribution. The surface composite layer matrix and the high manganese steel are well bonded.